Volumes have been set forth on this matter, and the conflict and face-offs about where the "hot" slot machine games are installed in a casino are still passionate – over sixty years after the slot machines were 1st installed in gambling dens.
The traditional rule is that the best slots were positioned just inside the main doorway of the casino; so that potential gamblers going by would be able to see jackpot winners and be drawn to come inside and play. Our assurance is that this is definitely no longer so.
Just about all of the mega casinos these days are magnificent complexes … it is not possible to see inside from the sidewalk, so there is no longer a reason to put the ‘loose’ one armed bandits near any exits.
An additional standard rule is that loose slot games are placed on the major aisles in the casinos, again so that more potential players could see winning jackpots and be galvanized to play. Notably though, we find that this also isn’t a universal rule any more.
What casinos found over the years is that people walking down the busy aisles were frequently on the way to somewhere else. If they played slot machine games at all, they would simply put in their loose change because they happened to be walking by. Win or lose, they would very often not stop to keep playing. And the very last thing a casino wants is for someone to win a jackpot by playing only a few coins and then not stay to put it all back in!
Nowadays, casinos are constantly changing their philosophy about where to place the loose slot machine games.